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• W1968640067 endingPage "90" @default.
• W1968640067 startingPage "82" @default.
• W1968640067 abstract "The pyridine-appended nonchelating bidentate ligands 1,4-bis(3-pyridyl)benzene (1) and 4,4′-bis(3-pyridyl) biphenyl (2) were complexed with a naked PdII ion for the construction of molecular cage compounds. Prior to these experiments, the complexation of the ligands with cis-[Pd(en)(NO3)2] was also examined, because self-assemblies from the cis-protected PdII ion were expected to be simple motifs that constitute the assemblies from naked PdII ion. The structures of the self-assembled compounds resulting from 1 and [Pd(en)(NO3)2] depended on the solvent employed. In aqueous solution, an M2L2 trenchlike compound was obtained. In dimethyl sulfoxide, however, a mixture of the M2L2 trench and an M3L3 macrocycle was found in equilibrium, the dynamic nature of which was confirmed by the concentration-dependent nature of the species. At higher concentration, an M4L4 macrocycle was mostly observed. The complexation of 1 with naked PdII ions was expected to produce novel structures that are combinations of the MnLn type frameworks. A peculiar tetrahedral M4L8 assembly was obtained quantitatively from 1 and Pd(NO3)2, rather than the smallest possible M3L6 double-walled triangle. Interestingly, the use of Pd(CF3SO3)2 resulted in the sole formation of the latter structure. Thus, the anion is important as a template in the formation of these assemblies. Ligand 2, which contains an extra p-phenylene unit compared to 1, behaved in a similar manner when treated with [Pd(en)(NO3)2], but showed subtle differences with naked PdII ions. With Pd(NO3)2, 2 gave mostly a tetrahedron along with a double-walled triangle. With Pd(CF3SO3)2, this longer ligand formed a double-walled triangle with a negligible amount of tetrahedra. A single discrete assembly of a perfect tetrahedron was obtained from 2 and PdII ions by choosing p-tosylate as a counterion." @default.
• W1968640067 created "2016-06-24" @default.
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• W1968640067 creator A5074074813 @default.
• W1968640067 date "2006-07-17" @default.
• W1968640067 modified "2023-10-18" @default.
• W1968640067 title "Dynamic Self-Assembly of an M3L6 Molecular Triangle and an M4L8 Tetrahedron from Naked PdII Ions and Bis(3-pyridyl)-Substituted Arenes" @default.
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• W1968640067 doi "https://doi.org/10.1002/asia.200600029" @default.
• W1968640067 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/17441041" @default.
• W1968640067 hasPublicationYear "2006" @default.
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